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Intermittent Fasting Blog & Guides

Evidence-based guides, plans, and answers — reviewed by registered dietitians.

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Does Gum Break Intermittent Fasting?
Intermittent Fasting

Does Gum Break Intermittent Fasting?

Regular gum with sugar belongs in the eating window. Sugar-free gum is a gray area: one piece may fit a flexible, practical intermittent fasting routi...

Intermittent Fasting and Insulin Resistance
Metabolic Health

Intermittent Fasting and Insulin Resistance

Intermittent fasting may help some people improve weight, eating patterns, or metabolic markers, but it should not be presented as a proven cure for i...

Intermittent Fasting Benefits: What Research Suggests
Intermittent Fasting

Intermittent Fasting Benefits: What Research Suggests

Intermittent fasting may help some adults create a consistent eating pattern and lose weight, but the benefits are not automatic and are not equally e...

Intermittent Fasting Eating Windows: 8, 16, and 18 Hours
Intermittent Fasting

Intermittent Fasting Eating Windows: 8, 16, and 18 Hours

An intermittent fasting eating window is the part of the day when you eat. In a 16:8 schedule, you fast for 16 hours and eat within an 8-hour window....

Intermittent Fasting While Pregnant or Breastfeeding
Women & Fasting

Intermittent Fasting While Pregnant or Breastfeeding

Intermittent fasting should not be started as a self-guided weight-loss plan during pregnancy or breastfeeding. These life stages change energy, fluid...

Keto and Intermittent Fasting
Eating & Nutrition

Keto and Intermittent Fasting

The ketogenic diet limits carbohydrate intake, while intermittent fasting limits when you eat. Combining them may simplify eating for some people, but...

Medication and Intermittent Fasting: What to Ask Your Clinician
Intermittent Fasting

Medication and Intermittent Fasting: What to Ask Your Clinician

Often, you should continue taking medication as prescribed while intermittent fasting. The important question is not whether a pill technically breaks...

Intermittent Fasting Before and After: What Results Are Realistic?
Weight Loss

Intermittent Fasting Before and After: What Results Are Realistic?

Intermittent fasting results are personal, and before-and-after photos cannot predict what will happen for you. A useful evaluation looks at weekly we...

Beginner Intermittent Fasting Meal Plan
Habits & Motivation

Beginner Intermittent Fasting Meal Plan

A beginner intermittent fasting meal plan should make the eating window easier, not stricter. Build meals around protein foods, vegetables, fruit, who...

How to Choose the Best Intermittent Fasting Plan for You
Fasting Plans

How to Choose the Best Intermittent Fasting Plan for You

The best intermittent fasting plan is the least restrictive schedule that fits your health context, daily life, meal needs, and ability to stay consis...